<template>
  <div class='icons'>
    <swiper :options='swiperOption'>
      <!-- slides -->
      <swiper-slide  v-for="(pages, index) in iconPages" :key="index">
        <div class='icon' v-for='item in pages' :key='item.id'>
          <div class='iconImg'>
            <img class='img' :src='item.imgUrl'/>
          </div>
          <p class='iconDesc'>{{item.desc}}</p>
        </div>
      </swiper-slide>
    </swiper>
  </div>
</template>

<script>
export default{
  name: 'indexIcons',
  props: {
    iconList: Array
  },
  data () {
    return {
      swiperOption: {
        autoplay: false
      }
    }
  },

  computed: {
    iconPages () {
      const pages = []
      this.iconList.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style lang='stylus' scoped>
  @import '~@styles/mixins.styl'
  .icons
    overflow: hidden
    width: 100%
    height: 0
    padding-bottom: 50%
    .icon
      position: relative
      overflow: hidden
      float: left
      width: 25%
      height: 0
      padding-bottom: 25%
      .iconImg
        position: absolute
        top: 0
        left: 0
        right: 0
        box-sizing: border-box
        padding: .1rem
        bottom: .44rem
        .img
          display: block
          height: 100%
          margin: 0 auto
      .iconDesc
          position: absolute
          left: 0
          right: 0
          bottom: 0
          height: .44rem
          line-height: .44rem
          text-align: center
          color: #666
          ellipsis()
</style>
